Mixing device for internal-combustion engines



July 21, 1925. 1,546,663

A. LAING MIXING DEVICE FOR INTERNAL COMBUSTION ENGINES Filed March 1,1924 Patented July 21, 1925,

nat on-n LAING;' or wmmrne; mama-013a,; CANADA...

12* oeelce.

Max ne Deviceon mrnnn'en-eolanusrron ENGINES;

Tovall lwlwm-jt may. 1 concern Be it knowmthat I; ARNOLDjLAINGazELLsub.- ject: of the King .ofGa'eatz Britain, and residentu' of the. cityofa Winnipeg, in. the :Province of Manitoba, Canada, have inventedcertainniew and useful :Improvements :in: Mixing ,DevicesforInternal-Combustion Engines, of; whiclrtherfollowing istheispecificationi i The r invention relates to improvements in mixingdevices particularly adapted. for use on .-i:inter'nalcombustionengines1 and an. 'object *ofthe :inventio'n I is tot provide a1 device which can 1 be readily vattached between the intake manifoldfandathe. carbureter, :Off? an internal combustionengine. and willoperate to effectively 1min therfuel passingrfrom the carbureter throughthe manifold .toatheengine cylindersland ,in so doing materiallyincrease its efliciency in the engine cylinders.

A further object isto. construct the. device so that itcan.be;inserted-randafastened in place without altering-the;presentconstruction of the manifolds and also to construct it so that the fanutilized can be easily re moved for inspection or replacement purposes.

A further object of the invention is to construct the device so that allthe fuel passing to the intake manifold has to come under the action ofthe fan with the result that it is all effectively broken up prior topassing to the engine cylinders.

With the above more important objects in view the invention consistsessentially in the arrangement and construction of parts hereinaftermore particularly described, reference being had to the accompanyingdrawing in which:

Fig. 1 is a front view of the device as it appears when installedbetween the carbureter and the intake manifold of the engine.

Fig. 2 is an enlarged detailed horizontal sectional view at 22 Figure 1and looking in the direction of the applied arrow.

Fig. 3is a vertical sectional view at 3 3 Figure 2 and looking in thedirection of the applied arrow.

Fig. 4 is a vertical sectional view at 4 4c Figure 3 and looking in thedirection of the applied arrow.

Figure 5 is a perspective view of a fan detached from the casing of mydevice.

Application. filedmMarc-h; 1,2192% Serial 1110:9696508.

Ina-the; .dnawing likecharacters of; reference indicate correspondingparts in the several figures? Thje carbureter-l which inlay be of anyap: provedci design, is: provided with the customary attaching flange 2whereby is connectedvto the complementary flange 3 of the intake imanifold. 4. Under ordinary conditions the flanges 2 and 3 areplacedface .to face and fastened. together bysimilar inner and outenbolts:which {pass through registering. .openings 5 and 6' provided in theflanges.

WVihen any mixingcsdevice, Wl IiOlLiS lHQllr cated generally; by: thereference numeral 7,1 is installedron the aengine, the-carbureter isremoved from .the manifoldto permit :of the; insertion of thei mixing: 1device --wl1i ch is provided gwith end zflanges 8 and .9complementatyitofthose. 2 and 3and provided with pairsiofflpenings 1Oand ll adapted to'registernviththe pairs of-openings5jand G of thefianges 2 j A pair of bolts 12 and 13- which, arm-somewhat longer thanthose customarily employed, are then passed through the flanges and uponthe nuts 1% of the bolts being tightened up, the vaporizer is securelyfastened in place.

The body 15 of the mixing device carries the end flanges 8 and 9 and isshown in the present instance as substantially square or box-like inform and it is provided interiorly with a horizontally disposed,transversely extending, cylindrical chamber 16, the inner end beingclosed by the back or inner wall 17 of the body piece, whilst theforward or outer end is closed by a removable cover plate 18 demountablyfastened in place by screws 19. Inlet and outlet openings 20 and 21 arelocated at the sides of the chamber, these communicating through theflanges 8 and 9 with the carbureter 1 and the intake manifoldrespectively and it will here be observed'that the ends of'the openingsnext the chamber are contracted and of an oval shape, whilst the outerends are circular and are provided with seats for gaskets 22 and 23. v

The plate 18 carries a pin or spindle 24: which is permanently securedthereto and passes centrally through the chamber 16 and has the innerend thereof seated in a suitable socket 25 formed in the back wall 17'of the body piece. On the spindle I mount rotatably a fan 26 whichembodies a sleeve-like hub 27 and extending lengthwise spiralling,equi-spaced blades or wings 28. The fan is of such a size that the outertips of the blades make sliding contact with the circular wall of thechamber 16 and the ends thereof make sliding contact with the ends ofthe-said cylindrical chamber. In other words the fan fills the chamber,so to speak, but is free to rotate therein and the firing mixture canaccordingly only reach the manifold after it is passed through the fanin the pockets provided between the blades.

hen the device is in use the suction of the engine cylinders causes thefan to rotate at a high velocity and in rotating, the fan veryeffectively breaks up, and mixes the passing charge with the result thatwhen it subsequently reaches the cylinders it is highly efiicient.

I am aware that fans have heretofore been used, such being horizontalfans and having their axis aligned with the direction of passage of thefiring mixture. In such latter types of fans a certain proportion of thefiring mixture can pass through the fan Without being operated onthereby. In my case, however, the fan is positioned transversely of thedirection of the firing mixture and is so mounted that it positivelyobstructs the passage of the firing mixture so that it cannot get fromthe carbureter to the manifold without being positively brought underthe influence of the rotating fan. In this Way all the firing mixtureentering the intake anifold is subjected to the action of the fan.

What I claim as my invention is:

A mixing device for internal combustion engines comprising a casingprovided with a transverse chamber cylindrical in cross section and withaligned openings located at opposite sides of the chamber at pointsintermediate the lengtl'i of the latter, said openings being madeflaring with the restricted ends communicating with said chamber, thelower Wall portions of the openings being inclined at a steeper anglethan the upper portions and in such manner that the inner lower portionsof the openings terminate at a level coinciding with the horizontal axisof the chamber, a longitudinal axially extending shaft mounted in saidchamber, a sleeve rotatableon said shaft and extending the full lengthof the chamber and a plurality of spirally curved blades carries by thesleeve, certain of said blades extending the full length of the sleeveand other of said blades being made of less length to extend from oneend of the sleeve to an intermediate point.

Signed at VVinnepeg, this 3rd day of January, 1924.

ARNOLD LAING.

In the presence of-

